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// Test TransientTransactionErrors error label in transactions.
// @tags: [uses_transactions]
(function() {
"use strict";
load("jstests/libs/write_concern_util.js");
load("jstests/libs/parallelTester.js"); // For ScopedThread.
const dbName = "test";
const collName = "no_error_labels_outside_txn";
const rst = new ReplSetTest({name: collName, nodes: 2});
const config = rst.getReplSetConfig();
config.members[1].priority = 0;
rst.startSet();
rst.initiate(config);
const primary = rst.getPrimary();
const secondary = rst.getSecondary();
const testDB = primary.getDB(dbName);
const adminDB = testDB.getSiblingDB("admin");
const testColl = testDB.getCollection(collName);
const sessionOptions = {causalConsistency: false};
let session = primary.startSession(sessionOptions);
let sessionDb = session.getDatabase(dbName);
let sessionColl = sessionDb.getCollection(collName);
let secondarySession = secondary.startSession(sessionOptions);
let secondarySessionDb = secondarySession.getDatabase(dbName);
assert.commandWorked(testDB.createCollection(collName, {writeConcern: {w: "majority"}}));
jsTest.log("Insert inside a transaction on secondary should fail but return error labels");
let txnNumber = 0;
let res = secondarySessionDb.runCommand({
insert: collName,
documents: [{_id: "insert-1"}],
readConcern: {level: "snapshot"},
txnNumber: NumberLong(txnNumber),
startTransaction: true,
autocommit: false
});
assert.commandFailedWithCode(res, ErrorCodes.NotMaster);
assert.eq(res.errorLabels, ["TransientTransactionError"]);
jsTest.log("Insert outside a transaction on secondary should fail but not return error labels");
txnNumber++;
// Insert as a retryable write.
res = secondarySessionDb.runCommand(
{insert: collName, documents: [{_id: "insert-1"}], txnNumber: NumberLong(txnNumber)});
assert.commandFailedWithCode(res, ErrorCodes.NotMaster);
assert(!res.hasOwnProperty("errorLabels"));
secondarySession.endSession();
jsTest.log("failCommand should be able to return errors with TransientTransactionError");
assert.commandWorked(testDB.adminCommand({
configureFailPoint: "failCommand",
mode: "alwaysOn",
data: {errorCode: ErrorCodes.WriteConflict, failCommands: ["insert"]}
}));
session.startTransaction();
jsTest.log("WriteCommandError should have error labels inside transactions.");
res = sessionColl.insert({_id: "write-fail-point"});
assert.commandFailedWithCode(res, ErrorCodes.WriteConflict);
assert(res instanceof WriteCommandError);
assert.eq(res.errorLabels, ["TransientTransactionError"]);
res = testColl.insert({_id: "write-fail-point-outside-txn"});
jsTest.log("WriteCommandError should not have error labels outside transactions.");
// WriteConflict will not be returned outside transactions in real cases, but it's fine for
// testing purpose.
assert.commandFailedWithCode(res, ErrorCodes.WriteConflict);
assert(res instanceof WriteCommandError);
assert(!res.hasOwnProperty("errorLabels"));
assert.commandWorked(testDB.adminCommand({configureFailPoint: "failCommand", mode: "off"}));
session.abortTransaction();
jsTest.log("WriteConflict returned by commitTransaction command is TransientTransactionError");
session.startTransaction();
assert.commandWorked(sessionColl.insert({_id: "commitTransaction-fail-point"}));
assert.commandWorked(testDB.adminCommand({
configureFailPoint: "failCommand",
mode: "alwaysOn",
data: {errorCode: ErrorCodes.WriteConflict, failCommands: ["commitTransaction"]}
}));
res = session.commitTransaction_forTesting();
assert.commandFailedWithCode(res, ErrorCodes.WriteConflict);
assert.eq(res.errorLabels, ["TransientTransactionError"]);
assert.commandWorked(testDB.adminCommand({configureFailPoint: "failCommand", mode: "off"}));
jsTest.log("NotMaster returned by commitTransaction command is not TransientTransactionError");
session.startTransaction();
assert.commandWorked(sessionColl.insert({_id: "commitTransaction-fail-point"}));
assert.commandWorked(testDB.adminCommand({
configureFailPoint: "failCommand",
mode: "alwaysOn",
data: {errorCode: ErrorCodes.NotMaster, failCommands: ["commitTransaction"]}
}));
res = session.commitTransaction_forTesting();
assert.commandFailedWithCode(res, ErrorCodes.NotMaster);
assert(!res.hasOwnProperty("errorLabels"));
assert.commandWorked(testDB.adminCommand({configureFailPoint: "failCommand", mode: "off"}));
jsTest.log("ShutdownInProgress returned by write commands is TransientTransactionError");
session.startTransaction();
assert.commandWorked(testDB.adminCommand({
configureFailPoint: "failCommand",
mode: "alwaysOn",
data: {errorCode: ErrorCodes.ShutdownInProgress, failCommands: ["insert"]}
}));
res = sessionColl.insert({_id: "commitTransaction-fail-point"});
assert.commandFailedWithCode(res, ErrorCodes.ShutdownInProgress);
assert(res instanceof WriteCommandError);
assert.eq(res.errorLabels, ["TransientTransactionError"]);
assert.commandWorked(testDB.adminCommand({configureFailPoint: "failCommand", mode: "off"}));
session.abortTransaction();
jsTest.log(
"ShutdownInProgress returned by commitTransaction command is not TransientTransactionError");
session.startTransaction();
assert.commandWorked(sessionColl.insert({_id: "commitTransaction-fail-point"}));
assert.commandWorked(testDB.adminCommand({
configureFailPoint: "failCommand",
mode: "alwaysOn",
data: {errorCode: ErrorCodes.ShutdownInProgress, failCommands: ["commitTransaction"]}
}));
res = session.commitTransaction_forTesting();
assert.commandFailedWithCode(res, ErrorCodes.ShutdownInProgress);
assert(!res.hasOwnProperty("errorLabels"));
assert.commandWorked(testDB.adminCommand({configureFailPoint: "failCommand", mode: "off"}));
jsTest.log("LockTimeout should be TransientTransactionError");
// Start a transaction to hold the DBLock in IX mode so that drop will be blocked.
session.startTransaction();
assert.commandWorked(sessionColl.insert({_id: "lock-timeout-1"}));
function dropCmdFunc(testData, primaryHost, dbName, collName) {
// Pass the TestData into the new shell so that jsTest.authenticate() can use the correct
// credentials in auth test suites.
TestData = testData;
const primary = new Mongo(primaryHost);
return primary.getDB(dbName).runCommand({drop: collName, writeConcern: {w: "majority"}});
}
const thread = new ScopedThread(dropCmdFunc, TestData, primary.host, dbName, collName);
thread.start();
// Wait for the drop to have a pending MODE_X lock on the database.
assert.soon(
function() {
return adminDB
.aggregate([
{$currentOp: {}},
{$match: {"command.drop": collName, waitingForLock: true}}
])
.itcount() === 1;
},
function() {
return "Failed to find drop in currentOp output: " +
tojson(adminDB.aggregate([{$currentOp: {}}]).toArray());
});
// Start another transaction in a new session, which cannot acquire the database lock in time.
let sessionOther = primary.startSession(sessionOptions);
sessionOther.startTransaction();
res = sessionOther.getDatabase(dbName).getCollection(collName).insert({_id: "lock-timeout-2"});
assert.commandFailedWithCode(res, ErrorCodes.LockTimeout);
assert(res instanceof WriteCommandError);
assert.eq(res.errorLabels, ["TransientTransactionError"]);
sessionOther.abortTransaction();
session.abortTransaction();
thread.join();
assert.commandWorked(thread.returnData());
session.endSession();
rst.stopSet();
}());
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